Projekteja vuodessa

### Abstrakti

Present study investigates the end-use performance of alternative liquid fuels in the current fleet of unmodified light-duty vehicle (LDV) engines. Two mathematical models have been developed that represent the way that various fuel properties affect fuel consumption in spark-ignition (SI) and compression-ignition (CI) engines. Fuel consumption is represented by the results from the New European Driving Cycles (NEDC) in order to reflect the end-use impact. Data-driven black-box modeling and multilinear regression methods were applied to obtain both models. Additionally, quantitative analysis was performed to ensure the statistical significance of inputs (p-value below 5%). Fuel consumption (output) of various alternative fuels can be estimated with high accuracy (coefficient of determination above 0.96), knowing fuel properties (inputs) such as lower heating value, density, cetane/octane number, and oxygen content. The validation procedures confirmed the quality of predictions for both models with the average error being below 2.3%. The model performance for the examined fuels such as hydrotreated vegetable oil (HVO) and ethanol blends showed significant CO_{2} reduction with high accuracy. Moreover, both models could be used to estimate CO_{2} tailpipe emissions and are applicable to various liquid SI/CI fuels for LDV engines.

Alkuperäiskieli | Englanti |
---|---|

Artikkeli | 117854 |

Sivumäärä | 12 |

Julkaisu | Energy |

Vuosikerta | 205 |

Varhainen verkossa julkaisun päivämäärä | 31 toukokuuta 2020 |

DOI - pysyväislinkit | |

Tila | Julkaistu - 15 elokuuta 2020 |

OKM-julkaisutyyppi | A1 Julkaistu artikkeli, soviteltu |

## Sormenjälki Sukella tutkimusaiheisiin 'Modeling the end-use performance of alternative fuels in light-duty vehicles'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

## Projektit

- 1 Aktiivinen

## ADVANCEFUEL: Facilitating market roll-out of RESfuels in the transport sector to 2030 and beyond

Seppälä, A., Larmi, M., Wojcieszyk, M., Kroyan, Y. & Kohl, T.

01/09/2017 → 31/12/2020

Projekti: EU: Framework programmes funding